Oakley Minutes with Gold Iridium lenses - excellent! Comfy, cool and they wrap around protecting your eyes from all angles.
The lenses are top quality and make everything really clear not to mention squash/drop proof!
Oakley do a variety of lenses - even some engineered for pilots who fly behind perspex. Not sure if this is available for all styles; but definately the Half Jacket.
http://www.oakley.com/private_pilot
Edit: Added URL